Collinder 135 |
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![Collinder 135](//upload.wikimedia.org/wikipedia/commons/thumb/7/76/Cr_135_DSS.png/280px-Cr_135_DSS.png) |
Observation data (2000.0 epoch) |
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Right ascension | 07h 08m [1] |
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Declination | −37° 10′[1] |
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Distance | 1,040.5 ly (319 pc [1]) |
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Apparent magnitude (V) | 2.1[1] |
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Apparent dimensions (V) | 50' |
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Physical characteristics |
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Other designations | Pi Puppis Cluster, Cr 135, C 0715-367 |
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Associations |
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Constellation | Puppis |
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See also: Open cluster, List of open clusters |
Collinder 135, known sometimes as the Pi Puppis Cluster, is an open cluster in Puppis constellation.
It consists of six stars brighter than 6th magnitude, and a widespread population of fainter stars.[2] It lies in the southern celestial hemisphere near a rich star field. The main component is the star Pi Puppis, which gives to the cluster its common name; it is an orange supergiant with a visual magnitude of 2.71. Two of the 5th magnitude stars are all variables: NV Puppis is a Gamma Cassiopeiae variable, while NW Puppis is a Beta Cephei variable.
References
- ^ a b c d "Cl Collinder 135". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2011-08-15.
- ^ H. Baumgardt (1998). "The Nature of some doubtful Open Clusters as revealed by Hipparcos". Astronomy and Astrophysics. 340: 402. Bibcode:1998A&A...340..402B.
External links
Media related to Collinder 135 at Wikimedia Commons - Observing Cr 135